There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

[신간의 별자리x] 우리/미술, 그리고 ‘슬픔의 박물관’

Thank you for reading principles of optics electromagnetic theory of propagation interference and diffraction of light. As you may know, people have search hundreds times for their favorite novels like this principles of optics electromagnetic theory of propagation interference and diffraction of light, but end up in harmful downloads. Rather than enjoying a good book with a cup of coffee in the afternoon, instead they are facing with some infectious bugs inside their computer.

Principles Of Optics Electromagnetic Theory Of Propagation Interference And Diffraction Of Light

This chapter introduces the finite element method (FEM) as a tool for solution of classical electromagnetic problems. Although we discuss the main points in the application of the finite element method to electromagnetic design, including formulation and implementation, those who seek deeper understanding of the finite element method should consult some of the works listed in the bibliography section.

Introduction to the Finite Element Method

We investigate the spectra of the gain and pump-to-signal relative intensity noise (RIN) transfer in silicon optical parametric amplifier (SOPA) with Raman effect, and draw a conclusion that Raman effect makes the spectra narrower from 260 nm to 180 nm. A maximum gain also appears at 1622 nm. Moreover, the effects of the related parameters in SOPA on the gain and the pump-to-signal RIN transfer characteristics are also discussed. The high gain (16 dB) and low pump-to-signal RIN transfer (7 dB) can be obtained by using the appropriate parameters of pump and silicon waveguide.

Characteristics of gain and pump-to-signal RIN transfer in a dual-pump SOPA with Raman effect

Based on the delayed self-heterodyne scheme, the linewidths of DFB and ECL are measured and analyzed by PSD of optical field, variance of phase difference and FM-noise PSD spectrum. The latter can measure the linewidth produced by white FM-noise. The impact of white noise and flick noise of laser on BER and mismatch length is researched.

Performance of Lasers with Flick FM Noise in Self-Homodyne Coherent Optical Systems

Abstract. A hollow-core negative curvature fiber (HC-NCF) with high birefringence for temperature sensing based on surface plasmon resonance effect is proposed. For the HC-NCF, the cladding layer is composed of six silica tubes, and the thickness and radius of the two silica tubes in the y-axis direction are different from those of other ones. Moreover, the two silica tubes in the y-axis direction are filled with the gold wires, and the ethanol to be tested is filled in other silica tubes and air area. As the temperature changes, the coupling state between the x-pol core mode and surface plasmon polarization mode will change. The temperature sensitivity can be up to 3.1  nm  /    °  C in the range of 20°C to 40°C. Moreover, the proposed HC-NCF temperature sensor simultaneously achieves the maximum R of 3.333  ×  10  −  2  °  C and maximum FOM of 269  °  C  −  1, which indicates that it has high sensitivity, good linearity, high R, and large FOM. The proposed HC-NCF temperature sensor is expected to be useful in the field of the environmental monitoring.

Hollow-core negative curvature fiber with high birefringence for temperature sensing based on surface plasmon resonance effect

We proposed an error-table (ET) based pre-correction (ETC) algorithm. Combined with DDFTN, A new record receiver sensitivity of −16.6 dBm was achieved at a BER of 3.8E-3 for 112 Gbit/s PAM4 signals transmissions over 40 km.

Experimental Demonstration of Novel ETC Algorithm for 112 Gbit/s PAM-4 Signals Transmission Over 40km without Optical Amplifier

We propose and demonstrate a directional bend sensing based on Mach-Zehnder interferometer in a high birefringence dual-core photonic crystal fiber. Its curvature sensitivity is up to 4.24 nm/m-1 within the curvature range of 2.19-3.99 m-1. © 2019 The Author(s)

Jinhui Yuan

Papers

Characteristics of gain and pump-to-signal RIN transfer in a dual-pump SOPA with Raman effect

Performance of Lasers with Flick FM Noise in Self-Homodyne Coherent Optical Systems

Hollow-core negative curvature fiber with high birefringence for temperature sensing based on surface plasmon resonance effect

Experimental Demonstration of Novel ETC Algorithm for 112 Gbit/s PAM-4 Signals Transmission Over 40km without Optical Amplifier

Directional bend sensing based on high birefringence dual-core photonic crystal fiber